CA2427713A1 - Method for the production of water-in-water polymer dispersions - Google Patents
Method for the production of water-in-water polymer dispersions Download PDFInfo
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- CA2427713A1 CA2427713A1 CA002427713A CA2427713A CA2427713A1 CA 2427713 A1 CA2427713 A1 CA 2427713A1 CA 002427713 A CA002427713 A CA 002427713A CA 2427713 A CA2427713 A CA 2427713A CA 2427713 A1 CA2427713 A1 CA 2427713A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Colloid Chemistry (AREA)
Abstract
The invention relates to a method for the production of a water-in-water polymer dispersion, comprising polymer A and at least one polymer dispersing agent B, whereby monomers, distributed in an aqueous phase containing the water-soluble dispersion agent B, optionally with addition of a water-soluble salt, undergo a radical polymerisation. After said polymerisation a water- soluble acid is added to the water-soluble or water-absorbent polymer A, obtained as above, whereby the acid is added in amounts of 0.1-5 wt. % and the salt in amounts up to a maximum of 3.0 wt. %, each relative to the total dispersion, and the combined amount of acid and salt is a maximum of 5 wt. % relative to the total dispersion.
Claims (32)
1. Method for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymeric dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerisation, possibly following the addition of a water-soluble salt, and, after polymerisation, a water-soluble acid is added to the water-soluble and/or water-swellable polymer A obtained in this way, characterised in that the acid is added in quantities of 0.1 to 0.5% by weight and the salt in quantities of up to a maximum of 3% by weight, each referred to the total dispersion, where the total quantity of salt and acid amounts to a-maximum of 5% by weight, referred to the total dispersion.
2. Method as per Claim 1, characterised in that the acid is added in quantities of 0.2 to 3.5% by weight, preferably 0.3 to 2.0% by weight, referred to the total dispersion.
3. Method as per Claim 1 or 2, characterised in that the salt is added in quantities of up to a maximum of 2.0% by weight, preferably 0.5 to 1:5% by weight, referred to the total dispersion.
4. Method as per Claims 1 to 3, characterised in that the acid and the salt are added in a total quantity of a maximum of 35% by weight, referred to the total dispersion.
5. Method as per Claims 1 to 4, characterised in that the water-soluble acid used is an organic acid and/or an inorganic acid, preferably an organic carboxylic acid, sulphonic acid, phosphonic acid and/or mineral acid.
6. Method as per Claim 5, characterised in that the carboxylic acid used is an aliphatic or aromatic monocarboxylic, dicarboxylic, polycarboxylic acid and/or a hydroxycarboxylic acid, preferably acetic acid, propionic acid, citric acid, oxalic acid, succinic acid, malonic acid, adipic acid, fumaric acid, maleic acid, benzoic acid, particularly preferably citric acid, adipic acid and/or benzoic acid.
7. Method as per Claim 5, characterised in that the inorganic acid used is hydrochloric acid, sulphuric acid, nitric acid and/or phosphoric acid.
8. Method as per Claims 1 to 7, characterised in that the water-soluble salt used is an ammonium, alkaline metal and/or alkaline-earth metal salt.
9. Method as per Claim 8, characterised in that the inorganic salt used is an ammonium, sodium, potassium, calcium and/or magnesium salt.
10. Method as per Claim 8 or 9, characterised in that the salt is a salt of an inorganic acid or an organic acid, preferably of an organic carboxylic acid, sulphonic acid, phosphonic acid or of a mineral acid.
11. Method as per Claim 10, characterised in that the water-soluble salt is a salt of an aliphatic or aromatic monocarboxylic, dicarboxylic or polycarboxylic acid, a hydoxycarboxylic acid, preferably acetic acid, propionic acid, citric acid, oxalic acid, succinic acid, malonic acid, adipic acid, fumaric acid, maleic acid, benzoic acid, sulphuric acid, hydrochloric acid or phosphoric acid.
12. Method as per Claim 11, characterised in that the water-soluble salt used is sodium chloride, ammonium sulphate and/or sodium sulphate.
13. Method as per Claims 1 to 12, characterised in that the dispersant B used is a water-soluble polymer with a maximum M w, of 2.0 x 10 6, preferably 50,000 to 1.2 x 10 6 g/mol, possibly mixed with a polyfunctional alcohol and/or a corresponding product of conversion with a fatty amine.
14. Method as per Claim 13, characterised in that polymeric dispersant B
contains at least one functional group selected from ether, carboxyl, sulpho, sulphate ester, amino, amido, imido, tertiary amino and/or quaternary ammonium groups.
contains at least one functional group selected from ether, carboxyl, sulpho, sulphate ester, amino, amido, imido, tertiary amino and/or quaternary ammonium groups.
15. Method as per Claim 14, characterised in that polymeric dispersant B is a cellulose derivative, polyvinyl acetate, starch, starch derivative, dextran, polyvinylpyrrolidone, polyvinylpyridine, polyethylene imine, polyamine, polyvinylimidazole, polyvinyl succinimide, polyvinyl-2-methylsuccinimide, polyvinyl-1,3-oxazolidone-2, polyvinyl-2-methylimidazoline and/or their respective copolymer with maleic acid, maleic anhydride, fumaric acid, itaconic acid, itaconic anhydride, (meth)acrylic acid, salts of (meth)acrylic acid and/or a (meth)acrylic acid amide compound.
16. Method as per Claims 13 to 15, characterised in that dispersant B is a cationic polymer consisting of at least 30% by weight, preferably at least 50% by weight, particularly preferably 100% by weight, cationic monomer.
17. Method as per Claim 16, characterised in that the cationic monomer is a diallyl dimethylammonium chloride, a dialkylaminoalkyl(meth)acrylate or dialkylaminoalkyl(meth)acrylamide with C1-C3 in the alkyl or alkylene groups and protonated or quaternised as an ammonium salt, preferably the methyl chloride-quaternised ammonium salt of dimethylaminoethyl(meth)acrylate, dimethylaminopropyl(meth)acrylate or dimethylaminopropyl(meth)acrylamide, particularly preferably diallyl dimethylammonium chloride.
18. Method as per Claims 13 to 17, characterised in that the polyfunctional alcohol used is a polyalkylene glycol, preferably polyethylene glycol, a block polymer of propylene/ethylene oxide with a molecular weight of 1,500 to 50,000, glycerin, ethylene glycol, propylene glycol, pentaerythritol and/or sorbitol.
19. Method as per Claims 1 to 18, characterised in that polymeric dispersant B
and the polyfunctional alcohol possibly present are added in quantities of 5 to 50% by weight, preferably 10 to 20% by weight, referred to the total dispersion.
and the polyfunctional alcohol possibly present are added in quantities of 5 to 50% by weight, preferably 10 to 20% by weight, referred to the total dispersion.
20. Method as per Claims 13 to 19, characterised in that the weight ratio of polymeric dispersant B to the polyfunctional alcohol is 1:0.01 to 0.5, preferably 1:0.01 to 0.3.
21. Method as per Claims 1 to 20, characterised in that polymer A has an M w of > 1.0 x 10 6 g/mol.
22. Method as per Claims 1 to 21, characterised in that polymer A is made up of non-ionic and/or cationic and/or amphiphilic, ethyleneically unsaturated, preferably water-soluble monomers, where the content of water-insoluble manomers possibly present is selected so as not to impair the water-solubility or water-swellability of polymer A.
23. Method as per Claim 22, characterised in that the non-ionic monomers used are compounds of general formula (I) where R1 stands for hydrogen or a methyl residue, and R2 and R3 stand, independently of each other, for hydrogen, for an alkyl or hydroxyalkyl residue with 1 to 5 C atoms, the cationic monomers used are compounds of general formula (II) where R1 stands for hydrogen or a methyl residue, Z1 stands for O, NH or NR4 with R4 for an alkyl residue with 1 to 4 C
atoms, and Y for one of the groups Y0 and Y1 stand for an alkylene residue, possibly substituted with hydroxy groups, with 2 to 6 C atoms, Y2, Y3, Y4, Y5, Y6, Y7, independently of each other, stand for an alkyl residue with 1 to 6 C atoms, and Z stands for halogen, acetate, SO4CH3, and the amphiphilic monomers are compounds of general formula (III) or (IV) where Z1 stands for 4, NH, NR4 with R4 for an alkyl residue with 1 to 4 carbon atoms, R1 stands for hydrogen or a methyl residue, R8 stands for an alkylene residue with 1 to 6 carbon atoms;
R5 and R6 stand, independently of each other, for an alkyl residue with 1 to 6 carbon atoms, R7 stands for an alkyl, aryl and/or aralkyl residue with 8 to 32 carbon atoms, and Z- stands for halogen, pseudo-halogen, SO4CH3- or acetate, or where Z1 stands for O, NH, NR4 with R4 for an alkyl residue with 1 to 4 carbon atoms, R1 stands,for hydrogen or a methyl residue, R10 stands for hydrogen, an alkyl, aryl and/or aralkyl residue with 8 to 32 carbon atoms, R9 stands for an alkylene residue with 2 to 6 carbon atoms, and n stands for an integer between 1 and 50.
atoms, and Y for one of the groups Y0 and Y1 stand for an alkylene residue, possibly substituted with hydroxy groups, with 2 to 6 C atoms, Y2, Y3, Y4, Y5, Y6, Y7, independently of each other, stand for an alkyl residue with 1 to 6 C atoms, and Z stands for halogen, acetate, SO4CH3, and the amphiphilic monomers are compounds of general formula (III) or (IV) where Z1 stands for 4, NH, NR4 with R4 for an alkyl residue with 1 to 4 carbon atoms, R1 stands for hydrogen or a methyl residue, R8 stands for an alkylene residue with 1 to 6 carbon atoms;
R5 and R6 stand, independently of each other, for an alkyl residue with 1 to 6 carbon atoms, R7 stands for an alkyl, aryl and/or aralkyl residue with 8 to 32 carbon atoms, and Z- stands for halogen, pseudo-halogen, SO4CH3- or acetate, or where Z1 stands for O, NH, NR4 with R4 for an alkyl residue with 1 to 4 carbon atoms, R1 stands,for hydrogen or a methyl residue, R10 stands for hydrogen, an alkyl, aryl and/or aralkyl residue with 8 to 32 carbon atoms, R9 stands for an alkylene residue with 2 to 6 carbon atoms, and n stands for an integer between 1 and 50.
24. Method as per Claim 22 or 23, characterised in that polymer A is made up of 1 to 99% by weight, preferably 20 to 80% by weight, cationic monomers
25. Method as per Claims 1 to 24, characterised in that polymer A is present in quantities of 5 to 60% by weight, preferably 10 to 50% by weight, referred to the total dispersion.
26. Method as per Claims 1 to 25, characterised in that, for radical polymerisation, the initiator system is added continuously during the entire course of polymerisation.
27. Water-in-water polymer dispersion obtainable by one or more of Claims 1 to 26.
28. Use of the water-in-water polymer dispersion as per Claim 27 as a flocculant in the sedimentation of solids, preferably in the conditioning of water and process water or in waste water treatment, in raw materials extraction, preferably coal, aluminium or petroleum, as an auxiliary in papermaking or as a demulsifier in the separation of water mixtures containing oil and/or fat.
29. Use of the water-in-water polymer dispersion as per Claim 27 as a thickener.
30. Use of the water-in-water polymer dispersion as per Claim 27 as a retention agent and drainage aid in papermaking.
31. Use of the water-in-water polymer dispersion as per Claim 27 as an additive for a crop protection agent, possibly together with other biologically effective substances.
32. Use of the water-in-water polymer dispersion as per Claim 27 as an additive for an anti-erosion agent.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10061483A DE10061483A1 (en) | 2000-12-08 | 2000-12-08 | Process for the preparation of water-in-water polymer dispersions |
DE10061483.3 | 2000-12-08 | ||
PCT/EP2001/014062 WO2002046275A1 (en) | 2000-12-08 | 2001-12-01 | Method for the production of water-in-water polymer dispersions |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2427713A1 true CA2427713A1 (en) | 2002-06-13 |
CA2427713C CA2427713C (en) | 2011-04-05 |
Family
ID=7666565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2427713A Expired - Lifetime CA2427713C (en) | 2000-12-08 | 2001-12-01 | Method for the production of water-in-water polymer dispersions |
Country Status (23)
Country | Link |
---|---|
US (1) | US7323510B2 (en) |
EP (1) | EP1353975B2 (en) |
JP (1) | JP4012067B2 (en) |
KR (1) | KR100886025B1 (en) |
CN (1) | CN1224637C (en) |
AR (1) | AR031647A1 (en) |
AT (1) | ATE315604T1 (en) |
AU (2) | AU2002229585B2 (en) |
BR (1) | BR0116006B1 (en) |
CA (1) | CA2427713C (en) |
CL (2) | CL2001002979A1 (en) |
DE (2) | DE10061483A1 (en) |
DK (1) | DK1353975T3 (en) |
ES (1) | ES2256321T5 (en) |
MX (1) | MX243000B (en) |
MY (1) | MY139509A (en) |
NO (1) | NO20032617D0 (en) |
NZ (1) | NZ526739A (en) |
PL (1) | PL204175B1 (en) |
PT (1) | PT1353975E (en) |
TW (1) | TW591060B (en) |
WO (1) | WO2002046275A1 (en) |
ZA (1) | ZA200303358B (en) |
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MX2015003203A (en) * | 2012-09-19 | 2015-10-08 | Solenis Technologies Cayman Lp | Process for improving the rheological properties of an aqueous dispersion. |
US9567708B2 (en) | 2014-01-16 | 2017-02-14 | Ecolab Usa Inc. | Wet end chemicals for dry end strength in paper |
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CN110819405A (en) * | 2019-11-19 | 2020-02-21 | 安徽鑫固环保股份有限公司 | Modified comb-type coal water slurry dispersing agent prepared from hydroxypropyl cellulose and preparation method |
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-
2000
- 2000-12-08 DE DE10061483A patent/DE10061483A1/en not_active Withdrawn
-
2001
- 2001-12-01 MX MXPA03005104 patent/MX243000B/en active IP Right Grant
- 2001-12-01 PL PL362248A patent/PL204175B1/en unknown
- 2001-12-01 EP EP01990467A patent/EP1353975B2/en not_active Expired - Lifetime
- 2001-12-01 WO PCT/EP2001/014062 patent/WO2002046275A1/en active IP Right Grant
- 2001-12-01 BR BRPI0116006-0A patent/BR0116006B1/en not_active IP Right Cessation
- 2001-12-01 PT PT01990467T patent/PT1353975E/en unknown
- 2001-12-01 AT AT01990467T patent/ATE315604T1/en active
- 2001-12-01 CA CA2427713A patent/CA2427713C/en not_active Expired - Lifetime
- 2001-12-01 DK DK01990467T patent/DK1353975T3/en active
- 2001-12-01 ES ES01990467T patent/ES2256321T5/en not_active Expired - Lifetime
- 2001-12-01 NZ NZ526739A patent/NZ526739A/en not_active IP Right Cessation
- 2001-12-01 CN CNB018202527A patent/CN1224637C/en not_active Expired - Lifetime
- 2001-12-01 DE DE50108702T patent/DE50108702D1/en not_active Expired - Lifetime
- 2001-12-01 JP JP2002548007A patent/JP4012067B2/en not_active Expired - Fee Related
- 2001-12-01 AU AU2002229585A patent/AU2002229585B2/en not_active Ceased
- 2001-12-01 AU AU2958502A patent/AU2958502A/en active Pending
- 2001-12-01 KR KR1020037007649A patent/KR100886025B1/en active IP Right Grant
- 2001-12-01 US US10/432,624 patent/US7323510B2/en not_active Expired - Lifetime
- 2001-12-04 TW TW090129900A patent/TW591060B/en not_active IP Right Cessation
- 2001-12-06 CL CL2001002979A patent/CL2001002979A1/xx unknown
- 2001-12-07 AR ARP010105710A patent/AR031647A1/en active IP Right Grant
- 2001-12-07 MY MYPI20015585A patent/MY139509A/en unknown
-
2003
- 2003-04-30 ZA ZA2003/03358A patent/ZA200303358B/en unknown
- 2003-06-10 NO NO20032617A patent/NO20032617D0/en not_active Application Discontinuation
-
2006
- 2006-01-27 CL CL2006000179A patent/CL45687B/xx active
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